[INFO] updating cached repository crftd/cidr
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/crftd/cidr
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/crftd/cidr" "work/ex/beta-1.38-1/sources/1.37.0/gh/crftd/cidr"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/crftd/cidr'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/crftd/cidr" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/crftd/cidr"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/crftd/cidr'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0940243c91afe7607b6590e8ee6bc9cf5975288b
[INFO] sha for GitHub repo crftd/cidr: 0940243c91afe7607b6590e8ee6bc9cf5975288b
[INFO] validating manifest of crftd/cidr on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of crftd/cidr on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing crftd/cidr
[INFO] finished frobbing crftd/cidr
[INFO] frobbed toml for crftd/cidr written to work/ex/beta-1.38-1/sources/1.37.0/gh/crftd/cidr/Cargo.toml
[INFO] started frobbing crftd/cidr
[INFO] finished frobbing crftd/cidr
[INFO] frobbed toml for crftd/cidr written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/crftd/cidr/Cargo.toml
[INFO] crate crftd/cidr already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing crftd/cidr against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/crftd/cidr:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 47e5a5f2d6db9e6a83ca79aedc29b0f36481cba17711a5c8c0d5eb0d94c64667
[INFO] running `"docker" "start" "-a" "47e5a5f2d6db9e6a83ca79aedc29b0f36481cba17711a5c8c0d5eb0d94c64667"`
[INFO] [stderr]    Compiling cidr v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: constant item is never used: `DIGIT_AMOUNT`
[INFO] [stderr]  --> src/core/ip.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     const DIGIT_AMOUNT: usize = 8;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Address`
[INFO] [stderr]  --> src/core/ip.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     pub struct Address;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `"docker" "inspect" "47e5a5f2d6db9e6a83ca79aedc29b0f36481cba17711a5c8c0d5eb0d94c64667"`
[INFO] running `"docker" "rm" "-f" "47e5a5f2d6db9e6a83ca79aedc29b0f36481cba17711a5c8c0d5eb0d94c64667"`
[INFO] [stdout] 47e5a5f2d6db9e6a83ca79aedc29b0f36481cba17711a5c8c0d5eb0d94c64667
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/crftd/cidr:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4e07b027d291bb1de31bda5093ed9b89afaed47f7be241e322723ca5aab9751c
[INFO] running `"docker" "start" "-a" "4e07b027d291bb1de31bda5093ed9b89afaed47f7be241e322723ca5aab9751c"`
[INFO] [stderr]    Compiling cidr v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `"docker" "inspect" "4e07b027d291bb1de31bda5093ed9b89afaed47f7be241e322723ca5aab9751c"`
[INFO] running `"docker" "rm" "-f" "4e07b027d291bb1de31bda5093ed9b89afaed47f7be241e322723ca5aab9751c"`
[INFO] [stdout] 4e07b027d291bb1de31bda5093ed9b89afaed47f7be241e322723ca5aab9751c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/crftd/cidr:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 88ff935e908d6251d12e605166dc26ed5e80054053ddc81c51da2cf3e25d6255
[INFO] running `"docker" "start" "-a" "88ff935e908d6251d12e605166dc26ed5e80054053ddc81c51da2cf3e25d6255"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/cidr-2ca7359f16927ffa
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test core::ip::tests::test_convert_to_octet_1 ... ok
[INFO] [stdout] test core::ip::tests::test_convert_to_octet_193 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "88ff935e908d6251d12e605166dc26ed5e80054053ddc81c51da2cf3e25d6255"`
[INFO] running `"docker" "rm" "-f" "88ff935e908d6251d12e605166dc26ed5e80054053ddc81c51da2cf3e25d6255"`
[INFO] [stdout] 88ff935e908d6251d12e605166dc26ed5e80054053ddc81c51da2cf3e25d6255